A method and apparatus for switching device, wherein the apparatus includes a clamp block (44) configured for attachment to a rail end point (12,14), the clamp block (44) including a housing (64) having a slot (66) formed therein, and a clip (42) configured to be received in the slot (66). The clip (42) disengageable from the slot (66) upon application of a generally lateral trailing force to the rail end point (12,14) in excess of a threshold value.